Carrier Apu Heater Not Working

Upon start up there is no exhaust smoke it heats up gets very hot like normal.

Carrier apu heater not working.

Thermostat location selection believe it or not the location of your thermostat can make a big difference when it comes to its effectiveness. The under bunk apu heater doesn t heat run very long. 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. Next time at home i ll check block heater.

Its a carrier and runs off truck s coolant. The heater will turn on only if the heat low temperature is too low to adjust the temperature see below. Hvac stops working how to trouble shoot it. Set thermostat to 90 until cab is quite warm then turn it do read more.

Comfortpro diesel auxiliary power units apus from carrier transicold are the trucking industry s all around performance leaders. If your carrier air conditioner or heater doesn t seem to be working properly check to verify that the hold button isn t engaged. Notice hours 00000 the display shows heat low. 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.

Make sure the main power. If your carrier air conditioning unit won t turn on there likely is an issue with its power source. Review by david march 1 2015. Control panel lights are on and will not turn off.

Check the outdoor cooling or condensing unit to see if it s running. 2020 freightliner cascadia answered by a verified technician. 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. If cold and plugged in and cranks real slow block heater not working.

The heat mode will not function if the temperature is higher than 85 f. Apu will not start. I have been doubting my batteries reliability lately truck is 2 1 2 years old now.