Lochinvar EcoForce EF80 Installation, Commissioning, User And Maintenance Instructions page 107

Cause:
There is no water in the unit while firing.
Corrective action:
This is an unlikely situation while all the safeties for checking the water presence didn't detect anything. Only a
lot of air in the system/unit (under pressure) can cause the water pressure switch to switch while no water is
present. Also the water leak detection
did not react. Bleed all air from the unit so the heat from combustion can be transferred to the water and won't
leave through the flue system.
Cause:
Heat exchanger failure.
Corrective action:
This is an unlikely situation but when there is severe damage to the heat exchanger, the combustion product
will not be able to transfer all heat to the system water. The heat that is not transferred will convert to an
increased flue gas temperature.
Display message
A n t i c y c l e t i m e
9 9 9 , 5 h r s
Reason
The controller received a new heat demand too fast after the last ended demand.
Cause:
Immediately opening and closing of the external thermostat.
Corrective action:
Controlled water flow cools down too quickly after loss of heat demand.
Controlled water flow heats up too quickly after start of heat demand.
Immediately opening and closing of the external thermostat. Check switching differential of the ON/OFF
thermostat.
Controller settings need to be changed. Be aware that the standard settings work fine for all common systems.
When anti-cycling is active, because of immediate heating or cooling of the controlled water flow/temperature,
it concerns an unconventional system.
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