Keston HEAT 2 45 Installation & Servicing page 67

5.2 FAULT FINDING MENU - CONTINUED
ERROR TYPE
(Warning, Blocking,
Lockout)
SYSTEM (FLAME, FAN, HYDRAULIC, ETC.) - CONTINUED
B PWM pump dry run error (feedback 80%)
B Warning code from pump (feedback 75%)
W VariCAN Error
B Safety Interlock Function activated (controlled shutdown)
L Air Pressure Switch error
W Air Pressure Switch warning (restart)
B
High water pressure
Min water flow rate
B/L
Maximum water flow rate exceeded
W
Quartz crystal error
W
B 0-10V Input out of range
INTERNAL SYSTEM
L Retails supervision error (COM-, Valve-Retails)
L Request for re-update
B Blocking due to programming mode
L Lockout parameter mismatch
L Lockout parameter set
B/L Internal blocking error
L System lockout (internal lockout error)
Installation & Servicing
SECTION 5 - FAULT FINDING
DESCRIPTION
ERROR
REFER TO SECTION...
CODE
(OpenTherm)
71 4
72 4
73 Check Bus
74 Info
75 n/a
76 n/a
77 n/a
78 n/a
79 n/a
80 contact service provider
81 Info
93 Reset, contact service if repeated
94 contact service provider
95 contact service provider
96 contact service provider
97 contact service provider
98 contact service provider
99 contact service provider
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