TROUBLESHOOTING
WARNING: Disconnect electrical power to the Chiller to prevent personal injury before attempting any internal maintenance. Only qualified personnel should service internal components or electrical wiring.
TROUBLE |
| PROBABLE CAUSE |
| REMEDY |
CHILLER DOES NOT | A. | No Power To Unit. | A. | Check Main disconnect fuses, |
OPERATE, CONTROL |
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| wiring, and power lead to unit. |
POWER LIGHT “OFF” |
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| B. | Defective Control Power | B. | Replace Switch |
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| Switch. |
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| C. | Defective Control Transformer. | C. | Replace Transformer |
D.Wrong Voltage Supplied to Unit.
E.
D.Supplied Voltage Must be within
± 10% of nameplate rating.
E.Check for correct voltage level on each phase of incoming
PUMP DOES NOT OPERATE, BUT COOLING LIGHT IS ”ON”.
A.Line to or from Chiller is restricted.
A.Inspect lines and remove any obstructions.
B. Internal or external filter is | B. Remove filter, |
blocked with debris. | replace. |
C. Pump Contactor is | C. Replace. |
defective. |
|
D.Damaged pump motor or impeller.
D.Replace pump motor or impeller.
CHILLER DOES NOT COOL, | A. | Thermostat is defective. | A. | Replace Thermostat |
AND COOLING LIGHT IS |
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”OFF”. |
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PUMP RUNS, COMPRESSOR | A. | No process load on | A. | Increase process load. |
”SHORT CYCLES”. |
| chiller. |
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| B. | Refrigerant is low. | B. | Check refrigerant charge. |
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UNIT RUNS CONTINUOUSLY, | A. | Condenser is restricted. | A. | Clean condenser. |
BUT IS NOT COOLING |
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PROCESS LIQUID ENOUGH. |
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| B. | Unit low on refrigerant. | B. | Call Service. |
| C. | Inefficient compressor. | C. | Call Service. |
| D. | Unit is undersized for | D. | Call REMCOR Chiller Sales Rep. |
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| application. |
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7 | 92266 |
