Fault And Warning Codes - Continued; Step 1. Troubleshooting The Btr Water Heaters - A.O. Smith BTR 120-400 Service Handbook

FAULT AND WARNING CODES - CONTINUED

STEP 1. TROUBLESHOOTING THE BTR WATER HEATERS

CHECK/REPAIR:
• Check that 120 VAC is supplied to the heater.
• Make sure the tank is full of water.
• Make sure the gas is supplied to the unit.
EFFIKAL DAMPER
The wiring colors from the damper PC Board are different colors than the wires on the heater wiring harness.
The male/female plugs to connect the damper board to the heater harness join in only one way.
The heater harness wires still serve the same function:
16 Servicing should only be performed by a Qualified Service Technician