Hoval AgroLyt 20, Руководство по эксплуатации

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Solution
Contact Hoval engineer. In the meantime the boiler can still be oper-
ated; an emergency mode program is executed automatically.
Contact Hoval engineer. In the meantime the boiler can still be
operated normally.
Contact Hoval engineer. In the meantime the boiler can still be
operated normally.
Important: the mixing motor must be unlocked (press button in with a
screwdriver and turn to hand symbol); then open the mixer manually
to approx. 70-80%.
Fault
F 15
F 16 - F 22
---
Check/Cause
Lambda sensor defective
Controller - Internal error
Mixing motor for return temperature
control defective
Error message checklist for TopTronic
®
lambda controller
The display of the individual errors alternates with the normal display (= operating state display).
The control unit can still be operated while an error is displayed. This means that temperature information
can be obtained and that the settings P01 to P03 can be changed, if required.
In case of a faulty temperature sensor, “uuu”, for cable open circuit, or “---”, for sensor short circuit, is shown
during the temperature poll.
Once the fault has been corrected, press the Plus key (5 seconds) to cancel the error message.
Note: The reported errors are shown, also after the fault has been corrected, until they are cancelled by
pressing the Plus key.
If the fault was not corrected, the error message appears again 3 seconds after the cancellation attempt
(after 300 seconds in the case of damper actuators).
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