Troubleshooting; Electrical Checks Flow Chart - Heat Controller HRE1318/1360-1A Installation And Operation Manual

16.1 ELECTRICAL CHECKS FLOW CHART

Repair and Recheck
Repair and Recheck
Compressor Internal
Compressor Winding Open
20
16.0 TROUBLE SHOOTING
In diagnosing common faults in the heat pump system, develop a logical thought
pattern as used by experienced technicians. The charts which follow are not intend-
ed to be an answer to all problems but only to guide the technician's thinking.
Through a series of yes and no answers, follow the logical path to a likely conclu-
sion.
A novice technician should use these charts like a road map. Remember that the
chart should clarify a logical path to the problem's solution.
YES
YES
Voltage on Compressor
YES
Run Capacitor
Start Capacitor
Potential Relay
Overload Open
Unit Wiring and
Connections
Unit Running?
NO
Thermostat Problem?
NO
Transformer Problem?
NO
Side of Contactor?
NO
Circuit Breakers
or Fuses Open
YES
Compressor Winding
Grounded
Outdoor Fan Motor
Grounded
Grounded Capacitor
Replace Fuses
or Reset Breakers
and Recheck System
YES
Go to
Mechanical Checks
for Cooling or Heating
NO
Voltage on Line
Side of Contactor?
YES
Compressor Contactor
Hi Pressure Cut-Out
Hot Gas Sensor
Compressor Time-Delay
Unit Wiring and
Connections