71
9 Faults rectification
9
.3 Operating problems
The following faults must be rectified only by qualified personnel:
Observation Cause Rectification
Poor start behaviour of the burner Mixing pressure too high uDecrease mixing pressure at
ignition position.
Ignition electrodes set incorrectly uSet the ignition electrodes.
Mixing head set incorrectly uSet the mixing head.
Flame pulsating or burner booming Mixing head set incorrectly uSet the mixing head.
Incorrect combustion air quantity uAdjust the burner.]
Stability problems Mixing pressure too high uDecrease mixing pressure at
ignition position.
No display at the operating interface Plug connection to the operating panel uPlug the connector correctly
incorrect
Operating interface defective uReplace the operating interface.
83055116 • 1/2016-05
Installation and Operating Instructions
G
as burner WG20.../1-C ZM-LN (W-FM 25)