Trouble shooting your Arctic Breeze 12 volt air ...
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Hammond Air Conditioning Ltd. 125 Samnah Crescent Ingersoll, Ontario N5C 3J7 Phone: 1-800-267-2665 Email: [email protected] Trouble shooting your Arctic Breeze 12 volt air conditioning system NOTE: This battery disconnect will automatically disengage the AC system when battery voltage drops below 12 volts and will automatically restart the system when battery voltage reaches 12.5 volts for a period of 15 to 30 seconds. Nothing works, not even blower Exceeds 12.5 volts Go to step 2 1 Check the voltage. Battery voltage low. Recharge batteries Was disconnected Reset 2 Check system breaker Was engaged. Go to step 3 Fuse was blown. Replace fuse, and check blower operation. 3 Check 7.5 amp ATO fuse inside condenser\ compressor box.(remove from fuse holder has RED wire) Fuses OK. Go to step 4. No power at fuse -check battery connections -ensure 12.5 volts available -check power in/out of breaker -may have faulty small relay -may have faulty battery disconnect switch See wiring diagram or dealer 4 With a 12 volt test light check for power available in/out of the 7.5 amp ATO Test light indicates power Go to step 5 Test light indicates power Wire may have become disconnected at blower switch or faulty ground 5 Disconnect 4 prong weather-pack connector at back of compressor box and check for power on the red wire coming out of the compressor box No power on red wire If power at fuse but no power at red wire on weather-pack connector, then wire must be broken. Repair and try again. Blower works but compressor does not start. Yes they do. Check to ensure both condenser fans operate. 1 Turn thermostat knob all the way clockwise to max cold position. The compressor and condenser fans should start to operate. No, the compressor does not start. Go to step 2. Fuse was blown. Replace fuse and check system operation. 2 Check 20 amp fuse for condenser fans. Fuses OK. Go to step 3. Yes, 12 volt in and out of switch. Go to step 4. 3 Check for 12 volt power at the binary switch, located on dryer. 12 volt found on one side only. System may be low/empty of refrigerant or may have faulty binary switch. If system is low, find and repair leak. Relay has power and clicks, but compressor still does not start. Note: condenser fans should also engage the same time as comp. Compressor motor may be faulty or require new brushes. Check all cable connections to ensure good contact and 12v power present. Check to ensure good ground available. 4 Check for 12 volt power and proper ground at small wires of the 75 amp relay. Relay should click as evaporator blower is turned on and off. Relay does not click but 12 volt is available on small white wire and ground is ok. Relay may be faulty ----- replace it. Everything runs, but the system does not blow cold air. Both coils are clean and have lots of air flow. Go to step 2. 1 Check to ensure the coils are both clean, evap coil located in cab and condenser coil located in compressor box. Coils require cleaning. Clean the coils and try again. Found leaks. Repair and refill. 2 Check system over for refrigerant leaks. Some refrigerant may have leaked out. No leaks found. Check pressures and feel return line temperature. Should be cold. Yes, the belt is tight. 3 Check belt tension to ensure compressor is operating at proper speed. Belt may have been slipping. Replace and tension belt.
Transcript of Trouble shooting your Arctic Breeze 12 volt air ...
Hammond Air Conditioning Ltd. 125 Samnah Crescent Ingersoll, Ontario N5C 3J7 Phone: 1-800-267-2665 Email: [email protected]
Trouble shooting your Arctic Breeze 12 volt air conditioning system NOTE: This battery disconnect will automatically disengage the AC system when battery voltage drops below 12 volts and will automatically restart the system when battery voltage reaches 12.5 volts for a period of 15 to 30 seconds. Nothing works, not even blower
Exceeds 12.5 volts Go to step 2 1 Check the voltage.
Battery voltage low. Recharge batteries
Was disconnected Reset 2 Check system breaker Was engaged. Go to step 3 Fuse was blown. Replace fuse, and check blower operation. 3 Check 7.5 amp ATO fuse inside
condenser\ compressor box.(remove from fuse holder has RED wire)
Fuses OK. Go to step 4.
No power at fuse -check battery connections -ensure 12.5 volts available -check power in/out of breaker -may have faulty small relay -may have faulty battery disconnect switch See wiring diagram or dealer
4 With a 12 volt test light check for power available in/out of the 7.5 amp ATO
Test light indicates power Go to step 5
Test light indicates power Wire may have become disconnected at blower switch or faulty ground
5 Disconnect 4 prong weather-pack connector at back of compressor box andcheck for power on the red wire coming out of the compressor box
No power on red wire If power at fuse but no power at red wire on weather-pack connector, then wire must be broken. Repair and try again.
Blower works but compressor does not start. Yes they do. Check to ensure both condenser fans operate. 1 Turn thermostat knob all the way
clockwise to max cold position. The compressor and condenser fans should start to operate.
No, the compressor does not start. Go to step 2.
Fuse was blown. Replace fuse and check system operation. 2 Check 20 amp fuse for condenser fans. Fuses OK. Go to step 3. Yes, 12 volt in and out of switch. Go to step 4. 3 Check for 12 volt power at the binary
switch, located on dryer. 12 volt found on one side only. System may be low/empty of refrigerant or may have faulty binary switch. If system is low, find and repair leak.
Relay has power and clicks, but compressor still does not start. Note: condenser fans should also engage the same time as comp.
Compressor motor may be faulty or require new brushes. Check all cable connections to ensure good contact and 12v power present.
Check to ensure good ground available.
4 Check for 12 volt power and proper ground at small wires of the 75 amp relay. Relay should click as evaporator blower is turned on and off.
Relay does not click but 12 volt is available on small white wire and ground is ok. Relay may be faulty ----- replace it.
Everything runs, but the system does not blow cold air. Both coils are clean and have lots of air flow.
Go to step 2. 1 Check to ensure the coils are both clean, evap coil located in cab and condenser coil located in compressor box. Coils require cleaning. Clean the coils and try again.
Found leaks. Repair and refill. 2 Check system over for refrigerant leaks. Some refrigerant may have leaked out. No leaks found. Check pressures and feel return line temperature.
Should be cold. Yes, the belt is tight. 3 Check belt tension to ensure
compressor is operating at proper speed.
Belt may have been slipping. Replace and tension belt.
BY HAMMOND AIR CONDITIONING LTD.
TM.
18G BLACK
18G WHITE
18G GREEN
18G RED
A B C D
BATTERY
18G BLACK
18G B
LAC
K
18G W
HITE
18G G
RE
EN
18G R
ED
12 VOLT RELAY
IGNITION LIVEPOWER
TO TERMINAL 30 ON RELAY
TO TERMINAL 86 ON RELAYTO TERMINAL 87a ON RELAY
TO TERMINAL 85 ON RELAY
GROUND
86
85
30
87a87
HEAT A/C
OFF
A/C THERMOSTAT
SWITCHBLOWER
RESISTOR
16G ORANGE
16G WHITE
16G YELLOW16G RED
EVAPORATORBLOWER
EVAPORATOR BOX
HEATCOIL
HEATCOIL
6G RED
6G BLACK
14G RED14G RED
16G BLACK
HEAT RELAY
6G BLACK
12 VOLT TRUCK WIRING DIAGRAMSHOWING OPTIONAL HEAT
MOST TRUCKS HAVE6 BATTERIES
8G RED (POWER)
8G BLACK (GROUND)
A B C D
BATTERY
BATTERY
BATTERY
70 A
MP
. REL
AY
8G RED (POWER IN)
8G RED (POWER OUT)
14G
BLA
CK
14G BLACK18G BLACK
RED
14G BLACK
8G BLACK
18 G. RED (EVAP FAN)
16G BLUE (COND. FANS)
18G WHITE
16G BLUE
16G BLACK
COND. FANSBINARYSWITCH
7.5A ATO
COND. \ COMP. BOX
18G
BLA
CK
18G WHITE
18G GREEN
14G RED 14G
BLA
CK
OPTIONAL HOURMETER POWER
LOWVOLTAGEBATTERYDISCONNECT
12 VOLT RELAY
14G B
LAC
K
14G W
HITE
14G B
RO
WN
14G R
ED
25A ATO
80
80 AMP. CIRCUIT BREAKER
SPARE (UN-USED)
NOTE: THIS WIRING DIAGRAM USED ON SERIAL NUMBER 061511-04 AND ABOVE
JULY 19, 2011
11.8V DISCONNECT (OPT.)
18G RED
