Thermo King Alarm Codes - North America This is a listing of all current truck, trailer, CR, DAS and DSR alarm codes. On multi-temp units, the zone will be identified.
Road Rail Marine Why Thermo King Locate a Dealer Careers Newsroom TracKing Alarm Codes Contact Us Region/Language Road ConnectedSuite™ Telematics Auxiliary Power Units Parts & Accessories for Road Electrification Solutions Road Maintenance Programs Pharma Transport Trailers Trucks & Vans Buses & Shuttles. Thermo King Service & Repair. TKX provides repair and maintenance services, including parts for all types of Thermo King refrigerated units. Including trailer, truck, auxiliary power units. TKX has been Chicago’s transport refrigeration service shop for over 30 years. Trailer Brake Repair & Maintenance Thermo King Tier1- Tier 2 OEM Starter The relay board is essential to transmitting messages in the circuit through an electrical current via the dashboard. New, used and refurbished Thermo King and Carrier Transicold relay boards are available for repair and replacement. Thermo King Alarm Codes For the following units: SB-III 30 SR+, SB-III 30 SR TCI-2, Super II 30 SR+ Thermoguard µP IV, Super II SR TCI-2 Thermoguard µP IV, SB-190, SB-200, SB-300, SB-400, Super II 190 Thermoguard µP VI Controller and SB-210, SB-310, SB-410 with SR-2 Controller. If unit does not re-start and all codes have been cleared.
A guide for troubleshooting alarm codes or fault codes on trailer and truck mounted Thermo King refrigeration units.
This guide lists all the Thermo King alarm codes that could go off on a Thermo King unit. These alarm codes will appear on straight truck refrigeration units and trailer refrigeration units. Just scroll down this page to find out what your alarm code means. If you need help further troubleshooting your Thermo King unit, visit the Mobile Reefer Repair in Sacramento,CA.
Thermo King Alarm Code & Description:
204 issue redundant discharge air sensor
203 issue with redundant return air sensor
137 issue with damper motor heater output
136 issue with spare digital outputs
135 issue with spare digital inputs
134 controller power on hours
133 total unit run time maint reminder # 2
132 total unit run time maint reminder # 1
131 engine run time maint reminder # 2
130 engine run time maint reminder # 1
129 engine run time maint reminder # 2
128 engine run time maint reminder # 1
127 setpoint not entered
126 issue with back pressure regulator
125 issue with tank level sensor
124 issue with evap coil outlet temp sensor
123 issue with evap coil inlet temp sensor
122 issue with diesel/electric circuit
121 issue with pmw liquid injection circuit
120 issue with alternator excite circuit
119 reserved for cr
118 auto switch from electric to diesel
117 auto switch from diesel to electric
116 issue with high pressure cut in switch
115 issue with high pressure cut out switch
114 multiple alarms- can not run
113 issue with elerctric heat circuit
112 issue with remote fans
111 unit not configured correctly
110 issue with suction line sol circuit
109 issue with high discharge pressure sensor
108 door open timeout
107 issue with condeensor inlet sol circuit
106 issue with purge valve circuit
105 issue with receiver tank press sol circuit
104 issue with remote fan speed
103 low heater fuel level
102 low evaporator coil temperature
101 controlling on evap coil outlet temp
100 heater fan failure
99 high compressor pressure ratio
98 issue with fuel level sensor
97 failed remote return air sensor
96 low fuel level
95 issue with loader # 2 circuit
94 issue with loader # 1 circuit
93 low compressor suction pressure
92 sensor grades not set
91 issue with electric ready input
90 electric overload
89 issue with electronic throttling valve circuit
88 reserved for cr
87 issue with suction pressure sensor
86 issue with discharge pressure sensor
85 forced unit operation
84 restart null
83 low engine coolant temp
82 high compressor temp shutdown
81 high compressor temp
80 issue with compressor temp sensor
79 internal data logger overflow
78 data log eprom failure
77 controller eprom check sum faliure
76 controller eprom failure
75 controller ram failure
74 controlleer reset to defaults
73 hourmeter 6 exceeds set time limit
72 hourmeter exceeeds set time limit
71 hourmeter 4 exceeds set time limit
70 hourmeter failure
69 issue with remagnetization circuit
68 internal controller fault code
67 issue with liquid line solenoid circuit
66 low engine oil level
65 abnormol temperature differential
64 pretrip reminder
63 engine or vapor motor stopped
62 ammeter out calibration
61 low battery voltage
60 issue with boost circuit
59 issue with condenser fan high speed
58 issue with condenser fan low speed
57 issue with evaportor fan high speed
56 issue with evaportor fan low speed
55 issue with engine speeds
54 test mode timeout
53 issue with economizer valve circuit
52 issue with heat circuit
51 issue with shutdown circuit
50 reset clock
49 reserved for cr
48 issue with belts or clutch
47 remote sensor shutdown
46 issue with air flow
45 issue with hot gas or hot gas bypass circuit
44 issue with fuel syatem
43 unit forced to low speed modulation
42 unit forced to low speed
41 issue with engine coolant temp
40 issue with high speed circuit
39 issue with water valve circuit
38 electric phase reversed
37 issue with engine coolant level
36 electric motor failed to run
35 issue with run relay circuit
34 issue with modulation circuit
33 issue with engine rpm
32 refrigeration capacity low
31 issue with oil pressure switch
29 defrost damper circuit issue with
28 pretip or self check abort
27 vapor motor rpm high (cr)
26 issue with refrigeration capacity
25 alternator check
24 heating cycle fault
23 cooling cycle fault
22 heating cycle fault
21 cooling cycle check
20 engine ( vapor motor cr) failed to start
19 low engine oil pressure
18 high engine coolant temperature
17 engine failed to crank
16 manual start not completed
15 issue with glow plugs or intake air heater
14 defrosat terminate by time
13 sensor check
12 sensor or digtal input shutdown
11 unit controlling on alternate sensor
10 high discharge pressure (or temp)
09 high evaporator temperature
08 unit running in coil sensor
07 issue with engine rpm sensor
06 issue with coolant temp sensor
05 issue with amibent temp sensor
04 issue with discharge air sensor
03 issue with return air sensor
02 issue with evaporator coil sensor
01 microprocessor power up reset
00 no alarms exist
Information for this article was sourced from Transport Refrigeration website.
- TKX Transport Refrigeration has over 60 years experience in Thermo King repair and Carrier Transicold repair for Refrigerated Trailer, Truck, Van and A.P.U. Units
- TKX Offers 24 hour a day Emergency Service (extra fees may apply)
- Thermo King Alarm Codes and Carrier Alarm Codes
Transport Refrigeration Repair & Service
TKX Transport Refrigeration has over 60 years of experience servicing both Thermo King and Carrier refrigerated trailer, truck, van and A.P.U. units. We have an excellent inventory of OEM parts to minimize downtime and get your refrigeration units serviced and back on the road. In fact, emergency repair is not only our specialty, but our pride and joy. Our experienced refrigeration mechanics understand the value of your time – getting your unit up and running in the absolute shortest time possible is our #1 priority, whether you are in the shop or on the road. We know that if a load of fruits, vegetables or meats isn’t being refrigerated on the road due to some mechanical mishap, there is no time to waste. We also understand the sooner you are able to get going again, the more likely you are to avoid insurance damages.
Our accuracy and speed are what set us apart from the rest, and TKX specializes in being Chicago’s most reliable and speedy cold transport repair mechanics. In the shop, we have numerous technicians on hand to do the job right, and in an emergency, we come to you and make sure you don’t lose any time, money or cargo due to refrigeration failure.
Trailer Washout Service
Trailer washouts refer to having the inside of a semi-truck trailer cleaned. This isn’t the same service as a trailer wash or truck wash, which refers to having the outside of a truck or trailer cleaned. Trailer washouts are normally recommended at least once a week or more often as needed. But as the country is dealing with increased levels of concern over potential opportunities for the spread of contaminates in the wake of the COVID-19, recent changes now require washouts to be done after every load or haul. These involve thoroughly cleaning the inside areas of a semi-truck trailer with hot water to prevent contamination and lower the risk of other problems.
Find out more about our Trailer Washout Service in Chicago, IL and Book your washout today!
Preventative Maintenance & Inspection
Every truck & trailer, but especially the refrigerated auto unit, needs regular maintenance and inspection. For Thermo King and Carrier refrigeration units, TKX Transport has all the tools and expertise necessary to ensure proper servicing to last your entire journey. TKX specializes in repairing refrigeration units using a large inventory of OEM parts, and we also inspect the truck and trailer to ensure all pieces of machinery operate smoothly together.
For regular maintenance and inspection, we overlook no part of the job because we want to get you out on the road with confidence and ease. Regular maintenance of refrigerated trailers is recommended at 1,500 hours, 3,000 hours and 4,500 hours (annually). Our experienced refrigeration mechanics check the refrigeration unit for adequate cooling, proper oil, working belts and everything else required for reliable mobile refrigeration. We take pride in visually inspecting the unit, cleaning any oil spills, clearing debris, making sure air flow is unobstructed, rotating fan motors and blades, tightening any electrical connections and more. We have six decades of experience in this industry, so we operate with the big picture in mind without sacrificing attention to detail.
Here’s our Refrigeration Maintenance & Inspection Checklist
Trailer Brake Repair
For any vehicle, maintaining functioning brakes is one of the most essential safety measures any driver can take, but it is especially important for professional truck drivers hauling tons of cargo over long distances. Depending on load and terrain, most heavy duty trucks have brake linings that need to be replaced once every 2 years. This is not a repair you can afford to miss! There is nothing more dangerous than a heavily loaded truck with failing brakes, but luckily, TKX Transport has the maintenance skills you can trust to keep your brakes in good shape.
With over 60 years of experience, we will check your brake lining regularly and help you plan to replace parts ahead of time, minimizing any risk for damages. We will also assess any safety hazards beyond regular wear and tear. Depending on the types of terrain driven, different trucks need different brake linings, and one of the best ways to damage your vehicle is to select the wrong material for this job. For example, driving through forests, mountains or cities with a lot of starting and stopping would require premium semi-grade metallic that can withstand a lot of friction. Our expert mechanics will take all relevant factors into account to find out exactly what you need to have the best working brakes possible.
Thermo King Code 04
No one will be on the road with faulty brakes; we make sure of it.
Trailer Lighting Repair & Service
As a commercial driver, even if the rest of your truck is running smoothly, any sort of light failure makes you a hazard on the road and also liable for hefty fines. In order to prevent any run-ins with local law enforcement or worse, an accident due to poor visibility, let TKX provide regular circuitry check ups for your electrical lighting system.
We will use specialized tools to check the health of the wires and the ability for electricity to be conducted from source to bulb, as well as replace any faltering light bulbs, strengthen any wire connections, replace any broken wires, and clean away or replace any rusted parts. All of Chicago would tell you, with us you can be sure that trailer lighting is not likely to be an unexpected problem on dark nights. And if any aspect of truck lighting gets tangled along the way, TKX is here to illuminate the most accurate and reliable repair techniques.
Insurance Maintenance Inspection
Commercial truck drivers usually carry some sort of insurance plan for the driver, the vehicle and the cargo. Making sure that all the requirements of the insurance plan are met is key to protecting against any possible damages. Freight carrying insurance plans require that any refrigerated truck unit be regularly inspected, serviced, maintained and repaired on a schedule determined by the maker of the trailer.
TKX is familiar with major insurance carriers and their requirements, as well as the schedules set by the makers of trailers and refrigeration units, so we can get your truck and cooling unit serviced and up to par with no hassle. Don’t take the chance of slacking on insurance maintenance; let TKX Transport complete all the required maintenance for you to stay 100% compliant.
Insurance Claim Work
If you are a commercial driver who has been in an auto accident, has gotten a traffic violation or has been cited for fix-it work, you will need to have the vehicle inspected and a claim made to your insurance company. Here in Chicago, TKX Transport Refrigeration will take care of your insurance claims and do the required investigation of the mobile cold storage vehicle to submit to your insurance carrier. No one likes getting caught up in red tape, but you can trust TKX to handle and submit any insurance claim that requires repair and investigation of any refrigerated auto unit.
DOT Certified Inspections
In order to ensure safety on the road, the U.S. Department of Transportation requires that every commercial truck and large bus must pass an annual DOT inspection. TKX is a certified and approved DOT inspector, and with 60 years in business, our DOT inspection process has been nailed down. We follow all DOT guidelines and inspect, repair and service the refrigerated truck and trailer as it needs. In order to pass the DOT inspection, you need accurate records, astute observations, quality repair skills and extensive experience, all of which TKX Transport is happy to provide.
Our customer service is excellent and we will make sure we do everything possible to pass your refrigerated truck or trailer. Don’t get stopped at any Chicago tollbooths for a spontaneous DOT inspection without possessing the utmost confidence in your vehicle that comes from regular TKX maintenance and a DOT passing grade.
Thermo King & Carrier Parts Supply (OEM, Reconditioned & Used)
Thermo King and Carrier account for roughly 90% of all mobile refrigerated systems, so it is vital that any refrigeration repair company have an expansive store of both knowledge and parts for these two major companies. TKX Transport Refrigeration is proud to satisfy both; we keep a vast supply of Thermo King and Carrier parts on company property so we are always prepared with the right equipment, and our experienced team of technicians is standing at the ready to implement their many years of experience.
Thermo King Repair Shops
We won’t keep you waiting by shopping around; we’ve already got everything we’d need to get the job done in no time. Offering an array of new OEM (original equipment from manufacturer) parts, reconditioned parts and gently used parts, we also strive to give you the best deal possible from a wide variety of Thermo King and Carrier auto parts. TKX Transport is your one stop shop for mobile cold storage parts replacement.