23
DIAGOSTIC TEST
10
Test 4 Heater check
Trouble Symptom : Heater is not working. Drying failure. The designated
temperature is not reached.
Trouble Symptom : Motor malfunction, ventilation error
Measurement condition : ① Power cord is unplugged.
NO
NO
YES
YES
With RLY1,RLY2, RLY3
disconnected from Controller,
•
RLY2 ②(Yellow) - RLY3 ①
(Blue) resistance ranges
26Ω~32Ω?
•
RLY1 ①(Blue) - RLY3 ①
(white) resistance ranges
53Ω~59Ω?
•Check and replace
controller.
•Relay RTY2, RTY3
•See page 15, PCB
assembly lay-out.
When check thermostat to
Heater,
it is less than 1
Ω
?
•Replace Heater
•Check Harness
connection
Check or replace Controller Assembly
Replace Harness and connector
Heater On/Off occurs
frequently
1. Clean Condensing unit :
2. Check if Lint filter is
damaged or clogged
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