Jonas1234

Hello everyone, Jonas from germany here. I´ve got a Mspa delight Aurora 06 Whirlpool. I bought it about 2 years ago. Now the Heater seems like to be very weak. The Heater needs 4-5 Days to heat the water up to 38 degrees Celcius. I cleaned up everthink, also the pump system. I completely dismounted everything. There wasn´t too much dirt in it. Can anybody help me with that? Thanks!