New Raypak Heater ignition failure

teckademic

Member
Jan 9, 2013
24
Atlanta, GA
Picked up a RayPak Digital Electronic Natural Gas Pool Heater (400,000 BTU) to replace an old Raypak that was end of life (It was removed before I remembered to write down the model). Pretty straight forward install do to everything lining up easily and I did it myself. It’s been running with water through it for a few weeks and I just got around hooking up the power and gas today. Saw no visible leaks using soapy water or smelled, heard anything.

When I set the gas pilot to On, then turn on the heater and set the temp for the spa to 100 the unit says Spark and I hear it trying to light the pilot light but it never does. It eventual says Ignition Failure; No Pilot Sensed.

I have confirmed gas is flowing at least to the unit. I also can make out a spark, but it never lights.

Is there something I missed in the install? Could it be a case of low pressure? From the gas meter, it is a 1.5 inch metal pipe until it exits next to heater. From the meter to the heater could be 50-60 feet.

Any insight would be wonderful.

Thanks
 

ajw22

Gold Supporter
TFP Guide
Jul 21, 2013
18,959
Northern NJ
Cycle it a bunch of times. When you have the gas line open it takes a bunch of cycles before you purge all the air from the gas line and get good ignition.
 

teckademic

Member
Jan 9, 2013
24
Atlanta, GA
Cycle it a bunch of times. When you have the gas line open it takes a bunch of cycles before you purge all the air from the gas line and get good ignition.
To Cycle it, I should just keep following the start up instructions? If you had to guess, how many cycles would need to be done?
 

ajw22

Gold Supporter
TFP Guide
Jul 21, 2013
18,959
Northern NJ
Yup, just keep cycling the start sequence.

I don’t know how many cycles it may take. If you get tired then bring in a gas guy who can safely check the gas pressure and purge the line.
 

teckademic

Member
Jan 9, 2013
24
Atlanta, GA
Thanks. Did about 7-8 cycles and kept getting the same results. Last cycle I left it trying to ignite for 10 min to see if anything changed and no dice. Guess I’ll find a gas guy.

Thanks for the tips.
 

borjis

LifeTime Supporter
Aug 19, 2014
3,231
Pacific NW
Just an idea but someone else recently had the same issue. Turns out they thought the gas valve was on. It was actually off.
 

brettch

Well-known member
May 23, 2020
48
ND
I had this right after install, due to no gas reaching. The plumbers that ran the gas line did not properly bleed the 50' of line they had buried and failed to plumb anything in for me to bleed the line either. Once they corrected this and we could smell gas at the union (6" or so from the heater) it only took a couple cycles for the heater to discharge the remaining air from the line and finally fire up.
 

teckademic

Member
Jan 9, 2013
24
Atlanta, GA
@teckademic
Any luck with this issue? I'm having the same problem.
Actually just got fixed yesterday. We got a new meter installed and it fired up right away.

Our meter was rated at 380k btu and they installed 1 million btu meter. I just supplied all the gas appliances and usage we had and that’s what they recommended.

Installed for free from AGL.