Electra Monoblock 7, Service Manual

Page: 66 / 187

11-1
TROUBLESHOOTING
Revision Y05-01 Service Manual - MOBILE Series
11. TROUBLESHOOTING
CONNECT THE AIR CONDITIONER TO
POWER SUPPLY.
DOES THE STANDBY
INDICATOR LIGHT UP?
START THE UNIT BY THE REMOTE
CONTROL.
START THE UNIT BY THE
ON UNIT CONTROL.
DOES THE SOPERATING
INDICATOR LIGHT UP?
IS THE CONTROLS SET
PROPERLY?
DOES THE
SOPERATING
INDICATOR LIGHT
UP?
IS THERE CORRECT
VOLTAGE BETWEEN THE
LINE AND NEUTRAL
TERMINALS ON THE MAIN
P.C.B?
REPLACE MAIN P.C.B OR DISPLAY P.C.B
DOES THE OPERATION
INDICATORS LIGHT UP
WHEN STARTING FROM ON
UNIT PANEL CNTROL.
IS THERE VOLTAGE BETWEEN THE
CONDENSATE PUMP TERMINALS ON
THE MAIN P.C.B?
IF LOW OR NO VOLTAGE, REPAIR POWER
SUPPLY.
REPLACE BATTERIES OR RESET THE
REMOTE CONTROL, OR REPLACE P.C.B.
REPLACE MAIN P.C.B OR DISPLAY P.C.B
SET THE REMOTE CONTROL
DOES THE CONDENSATE
SYSTEM FUNCTION
CORRECTLY?
REPLACE MAIN P.C.B
IS THERE VOLTAGE BETWEEN THE
CONDENSATE PUMP TERMINALS ON
THE MAIN P.C.B?
DOES THE CONDENSATE FLOAT OR
FLOAT SWITCH FUNCTIONS
PROPERLY?
REPAIR OR REPLACE FLOAT OR MICRO
SWITCH
REPAIR WATER TUBING OR REPLACE
PUMP
CHECK ELECTRICAL WIRING OR
REPLACE CAPACITOR OR MOTOR
RESISTOR OR FAN.
DOES THE INDOOR FAN
FUNCTION CORRECTLY?
REPLACE MAIN P.C.B
IS THERE VOLTAGE ON THE TPUMP
TERMINALS ?
IS THERE VOLTAGE BETWEEN THE
TERMINALS ON THE MAIN P.C.B?
IS THERE VOLTAGE BETWEEN
INDOOR FAN TERMINALS ON THE
MAIN P.C.B?
REPLACE CAPACITOR OR OUTDOOR FAN
OR PUMP
IF NO VOLTAGE REPLACE MAIN P.C.B - IF
LOW VOLTAGE REPAIR POWER SUPPLY.
REPLACE CAPACITOR OR OVER LOAD
PROTECTOR OR COMPRESOR.
DOES THE OUTDOOR FAN
OR OUTDOOR
CONDENSATE PUMP
FUNCTION CORRECTLY?
DOES THE OVER
FLOW SWITCH
FUNCTION
CORRECTLY?
DOES THE COMPRESSOR
START UP (CHECK WITH
AMPMETER)
REPAIR ELECTRICAL WIRING
IS THERE CORRECT VOLTAGE
(AT START) BETWEEN THE
COMPRESSOR TERMINALS ON THE
MAIN P.C.B?
IS THERE CORRECT VOLTAGE
(AT START) ETWEEN COMPRESSOR
TERMINALS ?
DOES THE
REFRIGERATION SYSTEM
FUNCTION CORECTLY FOR
COOOLING AND HEATING
*?(CHECK WITH
AMPMETER AND OR
PRESSURE GUAGES OR
SURFACE THERMOMETER
CHECK FOR LEAKS OR TUBING RESTRICTION,
REPAIR REFRIGERATION SYSTEM AND
CHARGE REFRIGERANT IF NECESSARY.
CHECK IF 4-WAY REVERSING VALVE GETS
POWER (FOR HEATING) OR IS DISCONNECTED
(FOR COOLING), IF VALVE DOES NOT
FUNCTION REPAIR WITH ASSOCIATED
TUBING.
NORMAL
CHECK AND REPAIR ELECTRICAL WIRING
REPLACE MAIN P.C.B
CHECK AND REPAIR ELECTRICAL WIRING
DRAIN THE CONDENSATE OR REPAIR
FLOAT OR OVERFLOW SWITCH.
No Yes
No
No
No
No
Yes
No
No
Yes
Yes
No
No
No
No
No
No
No
Yes
No
No
No
IS THERE VOLTAGE ON THE
TERMINALS BLOCK OF THE
OUTDOOR SECTION?
Yes
No
Yes
Yes
Yes
No
Yes
MOBILE SPLIT - TROUBLE SHOOTING CONTROLS AND REFRIGERATION
Yes
Yes
Yes
Yes
Yes
* FOR HEAT PUMP MODELS
NOTE: The Standby indicator is not in use for the portable units.