Tiffin Motorhomes Wayfarer TM 2021 Series Owner's Manual page 77

ROOF AIR CONDITIONER CONTINUED
HOW IT OPERATES CONTINUED
When the outdoor temperatures drop in the evening to below 75 degrees farenheit, the
temperature control knob should be set midway between WARMER and COOLER.
Otherwise the evaporator coil may become iced up and sop cooling.
Should icing up occur, it is necessary to turn the air conditioner off for at least 45
minutes to clear the coil of the ice. Alternatively, you may turn the selector knob to the
HI FAN position until increased airflow is observed.
When the air conditioner is in operation, its compressor circulates refrigerant under high
pressure. Once it is turned off, it takes three to four minutes to equalize the pressure.
Therefore once it is turned off it is important to leave it off for three to four minutes
before starting it up again. "Short cycling" the compressor will sometimes trip the circuit
breaker.
AIR CONDITIONER START UP
1. From the ceiling assembly, turn the selector switch to the LOW COOL or HIGH
COOL position.
2. Rotate the thermostat (temperature control) to the position most comfortable for
you.
3. If you feel a reduced amount of air, check the air filters highlighted in Image 69.1
for dust or debris.
TROUBLESHOOTING THE ROOF AIR CONDITIONER
PROBLEM
A/C doesn't run.
Not cooling or low cooling.
2021 Wayfarer TM Series Owners Manual V1.0
POSSIBLE CAUSES
No 120-VOLT power to roof
A/C
Evaporator coils are iced up.
Filter is clogged.
CHECKS/SOLUTIONS
1. If microwave is working,
check the A/C breaker in
converter.
2. If the microwave is
inoperative, troubleshoot the
120-VOLT system for the
motorhome.
Run air conditoner on FAN
High for 45 minutes or turn air
conditioner off for 45 minutes.
Remove filters and clean. (See
page 69)
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