Raypak 120, 85 manual For AL41 faults, For alarm AL91

Open
position
Fig. 46	Fig. 47

D red indicator LED fault

DHW mode

Fig. 48

Heating mode

Fig. 49

B green indicator LED

boiler status

Fig. 53 Fig. 54

	Closed
Fig. 55	position

Fig. 50		Fig. 51	Fig. 52
Code	Description of alarm			Status
AL10	Ignition attempts finished (no flame/condensate present)			Block
AL20	Limit thermostat fault, blocked flue switch, flue thermostat			Block
AL21	Low temperature thermostat/condensate pump safety			Block
AL29	device fault			Block
	Flue sensor over temperature lock out
AL60	Water tank probe fault			Block
AL71	Delivery probe fault (open/short circuit)			Stop
AL73	Return probe fault (open/short circuit)			Stop
AL28	Return/delivery probe differential fault			Block
AL26	Return over temperature			Block
AL79	Delivery over temperature / return-delivery probe			Block
AL41	differential fault			Stop
	System water pressure low
AL40	System water pressure low (after 10 minutes)			Block
AL34	Fan tacho fault			Block
AL52	Generic electronic fault			Block
AL55	No boiler mode configuration fault (corresponding jumper			Block
AL91	absent)			Advice
	The main heat exchanger need to be cleaned –
	call the Raypak technical service

For AL41 faults

If the pressure on the water gauge located on the control panel is less than 7 psi (0.5 bar), proceed as follows:

-Turn the function selector to (Fig. 54)

-Fill the system until the pressure indicated on the water gauge lies between 14-21 psi (1-1.5 bar) (Fig. 45 pos. A)

-Move the function selector to the desired position.

In case of frequent pressure drops, call your local Service Technician.

For alarm AL91

The boiler has an internal self diagnostic system that can advise if it is necessary to clean the main heat exchanger (alarm code AL91) after 2500 hours of working in particular conditions. After the heat exchanger cleaning (using the cleaning kit – Raypak Part No. 013142F) it is necessary to reset the hour meter with the following instructions:

Switch off the electric supply to the boiler Remove the knob of the main selector

Switch on the boiler while pressing the CO button for at least 4 seconds (Fig. 59). To check if the counter has been reset, switch OFF and ON the boiler main supply, after the lighting of all the segments of the display, the value of the counter will appear.

NOTICE

The reset counter procedure must be carry on after every heat exchanger deep cleaning and in any case after heat exchanger replacement.

NOTICE

To check the hours of the counter, switch off the main supply, than switch on. After the lighting of all the elements of the display, a number will appear: multiply for 100 to get the hours (18 = 1800 hours, 01 = 100 hours)

Fig. 56 Fig. 57

45