potterton apollo e133

[giarc00007]

got call last thing today to go look at boiler. was thinking electrodes or no gas. when i turned up the boiler is doing some strange things. when call for hw the boiler ignites then out, back on for a short while before lock out with e133 code and hot water light flashing. quickly checked gas inlet its jumping form 20 to about 16 mbar as burner is on and off and when it does light getting explosive ignition. back in morning to have a better look, any pointers would be great.

 

[dave1]

What's it like with ch?

 

[giarc00007]

What's it like with ch?

same both hw and heating

 

[Billy Bob Bob]

think Apollo is the same as a main eco? definitely 16mb? sounds low,sounds like a inlet pressure issue TBH

 

[giarc00007]

think Apollo is the same as a main eco? definitely 16mb? sounds low,sounds like a inlet pressure issue TBH

just the man hoped you would be on. yeah its same as the main. it was just the way the burner was on and off thought 16mb would still be enough inlet pressure for it to at least stay ignited (i know it is still low). it ignites then immediately extinguishes then straight back on and does this for a good 20 seconds before locking out with e133 and hot water flashing.

 

[giarc00007]

could it be lack of air as well gasman?

 

[dave1]

Had it where the flue has come apart.

 

[giarc00007]

also it was hard to judge as manometer was bouncing about as gas pressure was up and down as burner was on and off so im saying 16mb but hard to give exact.

 

[giarc00007]

will check flue dave1 thanks.

 

[giarc00007]

dont even get enough time to do fga before locks out

 

[Billy Bob Bob]

could it be lack of air as well gasman?

yes,flues can crack if the older metal band in the inner used,a flue integrity should show this,more prone on vertical flues

 

[giarc00007]

yes,flues can crack if the older metal band in the inner used,a flue integrity should show this,more prone on vertical flues

will check flue tomorrow its only standard horizontal so thats a easy quick check.

 

[Billy Bob Bob]

will check flue tomorrow its only standard horizontal so thats a easy quick check.

less likely with horizontal but worth checking,i would put it into calibration mode and clip on,if it drops below 16,assuming you can get it to run that long it will be a meter governor issue

 

[giarc00007]

thanks with check it further tommorow

 

[giarc00007]

just an update. it turned out to be blocked condensate.