Carrier Apu Heater Not Working

2020 freightliner cascadia answered by a verified technician.

Carrier apu heater not working.

Review by david march 1 2015. Notice hours 00000 the display shows heat low. I have a carrier pc6000. Control panel lights are on and will not turn off.

1 2 3 turning the heater on off 1 press to activate the heater. Thermostat location selection believe it or not the location of your thermostat can make a big difference when it comes to its effectiveness. Hvac stops working how to trouble shoot it. Check the outdoor cooling or condensing unit to see if it s running.

I have been doubting my batteries reliability lately truck is 2 1 2 years old now. Here s the problem apu turns on no problem a few minutes if it running alone i start the heater n not more then 20min if it running the apu seems to wanna die so the heater turns off automatically and when the engine settles up the heater turns on again. I have a carrier comfort pro apu and in the top right hand corner of the driver s control panel is a lightning bolt with off i have no ac no heat and no electric but the generator charges. Upon start up there is no exhaust smoke it heats up gets very hot like normal.

Comfortpro diesel auxiliary power units apus from carrier transicold are the trucking industry s all around performance leaders. If cold and plugged in and cranks real slow block heater not working. The heater will turn on only if the heat low temperature is too low to adjust the temperature see below. If your carrier air conditioning unit won t turn on there likely is an issue with its power source.

Next time at home i ll check block heater. Its a carrier and runs off truck s coolant. Set thermostat to 90 until cab is quite warm then turn it do read more. No other apu offers the combination of air conditioning heating cab power engine warming truck battery charging optional shore power connectivity and a 2 000 hour maintenance service interval found in the comfortpro diesel units.

Apu will not start. The heat mode will not function if the temperature is higher than 85 f. Make sure the main power.