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Hi. Be most grateful for any advice from the learned. I've been to one of these that intermittently cycles with a very loud deep vibrating noise. Sounds respiration based.
Does it with the front off also so not flue seals I'm thinking?
Doesn't change if I touch/move fan. Flue.
Condense clear. Sump clear. Trap clear.
Fga great
Inlet pressure fine
Gas valve resistance correct as per ideal technical.
When I first went to it it had no water in the trap. Probably because the flue had no fall. And it was set to max so no condensing. Remedied these two faults and it seemed to go away. Jobs a good UN I thought.
Customer calls and its making noises again.
Will check trap has water in again when I go back as it seemed to be linked to having an open airway into the drain.
Other things I've done
Run hot water through hex
Checked hex which is clear
Cleaned sump of hex bits
Changed ignition electrode and ionisation probe and set to correct dimensions.
Changed pump (external) as that was shot
Condense and flue now run downhill the right way.
Reseated fan.
Thanks Jon
Does it with the front off also so not flue seals I'm thinking?
Doesn't change if I touch/move fan. Flue.
Condense clear. Sump clear. Trap clear.
Fga great
Inlet pressure fine
Gas valve resistance correct as per ideal technical.
When I first went to it it had no water in the trap. Probably because the flue had no fall. And it was set to max so no condensing. Remedied these two faults and it seemed to go away. Jobs a good UN I thought.
Customer calls and its making noises again.
Will check trap has water in again when I go back as it seemed to be linked to having an open airway into the drain.
Other things I've done
Run hot water through hex
Checked hex which is clear
Cleaned sump of hex bits
Changed ignition electrode and ionisation probe and set to correct dimensions.
Changed pump (external) as that was shot
Condense and flue now run downhill the right way.
Reseated fan.
Thanks Jon
