Question I recently sold my 2004 Marquis Mirage spa to a friend so this is second hand information. He hooked it up filled it and then told me the heater was inoperative.He replaced the heater himself and now says nothing works, the pumps have stopped operating. He said he had a code of 1888 showing at first then it switched to 56. I have researched Marquis error codes and these are not mentioned as regular codes, what does this indicate?
Answer Sorry but numbers normally indicate the error but I think the control panel might be faculty.
Also check the flow through the pump since at low flow the heater shuts off, indicating obstruction to flow.
Reasons: Blockage in Pipes or cartridge not cleaned.