Air Conditioner Does Not Operate - Technibel MCAF92R5TA Technical Data & Service Manual

6-2. Air conditioner does not operate.

6-2-1. Circuit breaker trips (or fuse blows).
A. When the circuit breaker is set to ON, it is tripped soon. (Resetting is not possible.)
G There is a possibility of ground fault.
G Check insulation resistance.
If resistance value is 2MΩ or less, insulation is defective ("NO").
*
Set circuit breaker to OFF.
Remove inter-unit wires from
1
terminal plate in outdoor unit.
• Measure insulation resistance
of outdoor unit.
Remove inter-unit wires from
2
terminal plate in indoor unit.
Then, pull the power plug out of
the wall outlet
• Measure insulation resistance
of indoor unit.
WARNING
NO
•
NO
•
29
Insulation of
outdoor unit
is defective.
Measure insulation
resistance of electrical
parts in outdoor unit.
Insulation of
indoor unit
is defective.
Measure insulation
resistance of electrical
parts in indoor unit.