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Page Title:
AIR CONDITIONER WILL NOT START IN ANY MODE - continued |
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 TM9-4120-423-14&P
1.
AIR CONDITIONER WILL NOT START IN ANY MODE - Continued
(b)
Measure ac voltage between T1-7 and T1-8.
(c)
If 27 to 33 Vac is indicated, go to step 12.
(d)
If not, check transformer input.
(e)
If 197 to 229 Vac is indicated, replace transformer (see WP0034).
(f)
If 197 to 229 Vac is not indicated, use electrical schematic or wiring diagram and
locate defect (see WP0145).
(g)
Repair or replace defects as indicated.
TEST OR INSPECTION
Step 12.
Check rectifier CR1 and wiring harness.
CORRECTIVE ACTION
(a)
Remove electrical module assembly (evaporator) top cover (see WP0041).
(b)
Apply power.
(c)
Turn S1 switch to COOL mode.
(d)
Measure dc voltage across rectifier CR1 (+) and (-) terminals.
(e)
Reading should be between 25 and 31 Vdc.
(f)
If 25 to 31 Vdc is not indicated, check ac input to rectifier.
(g)
If 27 to 33 Vac is indicated, replace rectifier CR1 (see WP0037).
(h)
If 27 to 33 Vdc is not indicated, turn power off and check individual wire leads.
Repair or replace as indicated.
TEST OR INSPECTION
Step 13.
Check remote control assembly.
CORRECTIVE ACTION
(a)
Measure resistance between connector J14 pins in accordance with table in
(b)
If resistances are not as indicated on table, use electrical schematic or wiring
diagram to locate defect. Repair or replace as indicated (see WP0145).
MALFUNCTION
2.
COOLING ACTION STOPS AFTER OPERATING A SHORT TIME
0010 00-6
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