Pentair Heater won't fire

[Hoppoolguy]

Have Mastertemp 400 Heater has been working fine. Had drizzle / mist for a couple of days then went to fire heater.
Control panel all lights light up display shows r04 then shuts off. Have done initial trouble shoot all seems well. no error lights.
I have not seen this one before
Thanks for input

 

[ajw22]

Is your heater connected to automation.

Does the blower begin running?

Does your heater have a 5 button keypad or 6 button keypad?

How old is the heater?

Read Sequence of Operation in Pool Care Basics Archives and describe how far into the start sequence it gets.

 

[Hoppoolguy]

Good evening ...sorry I missed your reply
no on automation
no on blower ...it lights up to the r04 for about 5 sec then off
Heater original is 2009 but many part replaced

 

[ajw22]

Does your heater have a 5 button keypad or 6 button keypad?

Show us pics of the heater and your equipment pad.

 

[Hoppoolguy]

Sorry thought I had answered that 5 button
It appears to be the membrane pad as I jumpered 5/6 and the heater fired

 

[Hoppoolguy]