Electric Heater Not Running - Friedrich PTAC ZONEAIRE SELECT Service & Parts Manual

TROUBLESHOOTING

Electric Heater Not Running

Indoor unit air circulation is blocked. Remove the obstacle.
Thermostat on the heater is cut out. Wait for awhile to see if it can restart.
Thermal fuse is broken. Replace heater.
Wiring error. Check wiring with the circuit diagram.
DIP switch of NO.3 is in OFF position. Set it to ON position.
Wiring error. Check wiring with the circuit diagram.
Figure 724
The relay may be faulty. Replace the relay.
Figure 725
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