Sunheat SH1500RC BB, Repair Manual, Page: 16 / 25

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How To Replace The Circuit Board
!!Unplug The Heater Before Servicing!!
(Remember That the Edges of the Metal Are Sharp. Use Caution)
NOTE: IT IS RECOMMENDED THAT YOU REMOVE THE QUICK CONNECTS FROM THE HEATER
AND DIRECT WIRE TO THE POWER ROUTING BOARD. PLEASE REFER TO INSTRUCTIONS ON
HOW TO ELIMINATE THE QUICK CONNECTS IF YOU HAVE THEM.
Remove both left & right access panels from the metal center unit along with the rear panel.
You will need a 5/64 Allen wrench to remove the circuit board. Hold bolts in place with a pair
of pliers while using the wrench to remove the 4 screws that hold the circuit board in place on
the other side.
Note: Keep wires attached to old board.
Quick Connect