CASA Controller & Interface Fuse Replacement
The information below is fuse values for North American 120V units.
CASA Controller
| Power Board - Located inside controller behind plastic cover | ||
| Unswitched AC Outlet | Location F1: | 1A 250V AGC/GMA |
| Main Power | Location F2: | 6.3A 250V AGC/GMA |
| Mother Board - Located inside controller near heat sink | ||
| Zone DC Power Rails | Location F1/F2: | 10A 250V AGC/GMA |
| Switched AC Relay | Location F3: | 5A 250V AGC/GMA |
CASA Interface
| Power Board - Located inside interface behind AC receptacle | ||
| Primary Fuses | Location F3/F4: | 1.6A or 4A 250V GMA |
| Secondary Fuses | Location F1/F2: | 6.3A 250V GMA |
Notes
All fuses have "T" designation for timed reaction (slo-blow).
Glass type fuses are acceptable for replacement of the ceramic type.
Converted UK Controllers may indicate F1 as 500mA and F2 as 3.15A on the Power Board (Mother Board fuses are the same for both versions).
AGC/GMA indicates dual fuse size receptacle (30mm/19mm).