ERGOMAX® TROUBLE-SHOOTING CHECK LIST
|
PROBLEM |
PROBABLE CAUSE |
SOLUTION |
| No hot water | Boiler does not operate | - Press reset button |
| - Check fuse | ||
| - Check main cut off switch | ||
| Circulator does not operate | - Check power supply | |
| Zone valve does not open | - Check power supply | |
| Improper setting on aquastat | - Turn aquastat to a higher temperature | |
| Electrical problem | - Check relay, fuse and replace | |
| - Reset circuit breaker (if applicable) | ||
| - Check power supply | ||
| - Check all wiring | ||
| Inoperative aquastat | - Set aquastat to higher temperature and see if circulator starts to operate. Replace aquastat if needed | |
| Air trapped in ERGOMAX tank | - Open pressure relief valve on top of ERGOMAX to let air out | |
| Not enough hot water | Aquastat set too low | - Turn aquastat to a high setting & install mix valve |
| Demand greater than boiler output | - Check sizing calculation | |
| Defective aquastat | - Replace | |
|
Insufficient boiler output (BTU's) with no priority for domestic hot water |
- Reduce hot water flow rate. Install priority switch. Install mix valve | |
| Air trapped in ERGOMAX tank | - Open pressure relief valve on top of ERGOMAX to let air out | |
| Water temperature starts to drop | Aquastat set too low | - Set aquastat to higher temperature |
| Boiler undersized, no priority for DHW | - Install priority switch | |
| Demand for hot water greater than boiler Btu output | - Reduce hot water flow & check boiler/ERGOMAX sizing calculations | |
| Water pressure is very high | Install pressure reducing valve. Set to 60-65 psi | |
| Water temperature too hot | Aquastat set too high | - Set aquastat to lower temperature |
| - Check aquastat operation. (As aquastat is set to lower temperature, circulator should stop.) | ||
| Defective aquastat | - Replace aquastat | |
| Check mix valve | - Set mix valve to lower temperature | |
| - Clean mix valve | ||
| Improper plumbing | - Check plumbing against installation instructions | |
| Improper system wiring | - Check wiring | |
| Sound of rushing water when circulator starts | Air in piping and/or tank | - Open pressure relief valve to let air out. Install air vent on last elbow in piping leading into the tank |
| Gurgling sounds in ERGOMAX | Air in tank | - Open pressure relief valve to let air out. Install air vent on last elbow in piping leading into the tank |
| Coils making a noise | Air in tank | - Open pressure relief valve to let air out |
| Surges of hot/cold water in shower | Shower fixture problem | - Check pressure balancing valve operation |
| Pressure relief valve discharges occasionally | Pressure on boiler side too high | - Lower boiler pressure |
| - Check pressure relief valve operation | ||
| - Check if expansion tank has failed | ||
| Pressure relief valve discharges often | Pressure on boiler side too high | - Could indicate coil failure. Call your plumber |
| Boiler cycles too often | Boiler high limit set too low | - Set high limit higher |
| Electrical wiring | - Check aquastat/boiler control wiring | |
| Boiler control | - Check boiler control operation | |
| Aquastat | - Check aquastat operation | |
| Tank leak | Determine location | - Check tank drain for leak |
|
- Call your plumber to determine location (aquastat well not tight, pressure relief valve leaking, temp/pressure gauge not tight, tank leak) |
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ERGOMAX Improvements & Buffer Tanks
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