Manual 2100-350D
Page
20 of 24
TROUBLESHOOTING
SOLID STATE HEAT PUMP CONTROL
TROUBLESHOOTING PROCEDURE
1.
NOTE:
A thorough understanding of the defrost
cycle sequence is essential. Review that section
earlier in this manual prior to troubleshooting the
control.
Turn on AC power supply to unit.
2. Turn thermostat blower switch to “fan on” – the
indoor blower should start. (If it doesn’t,
troubleshoot indoor unit and correct problem.)
3. Turn thermostat blower to “auto” position. Indoor
blower should stop.
NOTE:
Many models have a
1-minute blower time delay on “off” command;
wait for this to time-out.
4. Set system switch to “heat” or “cool”. Adjust
thermostat to call for heat or cool. The indoor
blower, compressor and outdoor fan should start.
NOTE: If there was no power to 24 volt transformer,
the compressor and outdoor fan motor will
not start for 5 minutes. This is because of
the compressor short cycle protection.
TABLE 5
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Summary of Contents for WH262
Page 5: ...Manual 2100 350D Page 5 of 24 FIGURE 1 UNIT DIMENSIONS...
Page 10: ...Manual 2100 350D Page 10 of 24 FIGURE 3 MOUNTING INSTRUCTIONS...
Page 13: ...Manual 2100 350D Page 13 of 24 FIGURE 7 COMMON WALL MOUNTING INSTALLATIONS...
Page 19: ...Manual 2100 350D Page 19 of 24 FIGURE 13 DEFROST CONTROL BOARD...
