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Tel. +46 8 594 110 50, Fax +46 8 590 868 80, e-mail: [email protected], www.pahlen.com

Aqua-Mex heat exchanger

ENGLISH 

6

Installation instruction

MA40-12E

2011

Troubleshooting

Fault

Cause - action

Heat exchanger pump 
does not start 

(only for Aqua-Mex FE

Check the fuses in the electrical control box. 
Check the voltage (see data on the rating plate). 
Check that the Aqua-Mex FE is being supplied with current (a dot is showing in the display). 
Check that the Aqua-Mex FE is switched on (on/off button). 

M+&-U(,+&(*&-5.8#0B(-)0-"),T*(?54C(=+&(?54(*4),-+(-",*(5",(4+&.(*&-5.8#0B(-)0-"),(?54()*(2&**(

than 90 litres/min. 
Set a higher temperature. 
Check that the motor is not blocked by built-up deposits. Undo the air screw entirely and check the 
rotor’s free movement with a screwdriver. 

Noise in the pump

M#1),#,)5.(.5)*&(54)./(,5(254(*,#,)-().?54(E0&**"0&C(D.-0&#*&(,+&(E0&**"0&()>(E5**)32&:(5,+&04)*&(

select a higher power output setting on the circulation pump 

(only for Aqua-Mex FE).

D.*">9-)&.,(+&#,)./(

Air in the system – the system/circulation pump needs to be bled. 
Select a higher power output setting on the circulation pump 

(only for Aqua-Mex FE)

D.*">9-)&.,(*&-5.8#0B(-)0-"),(?54:(*&&(,+&(,#32&(&.,),2&8(S^&0>50F#.-&AC(

Temperature of the primary circuit’s water not high enough – check the heating source, insulate 
the primary piping more effectively. 
Check that the heat exchanger is installed such that the primary and secondary circuits operate in 
opposite directions. 

Flow noise 

Lower the speed by turning down the circulation pump to a lower gear 

(only for Aqua-Mex FE)

Error codes 

<H(a(?54(*4),-+:(-)0-"2#,)5.(E"FE(

E2 = pool temperature sensor 
HI = pool temperature above +45ºC 

 

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