Service manual - Logamax plus GB142 (USA/CA) - en - Buderus

More documents

Recommendations

Info

7DiagnosisRepl. BBpage 3421Check that the tank filling pumpis running.Is the tank fillingpump running?NoCheck that during hot water mode there is a120V AC voltage on the tank filling pump.Yes45page 37Is the tank filling pumpbeing activated?NoCheck the connection board to make sure thatthere is 120V AC on both contacts L and N ofconnection PS (gray) during hot water mode.Yes46page 37Doesthe connection boardhave on both contacts L and N ofconnection PS 120V AC during hotwater operation?YesReplace the supplycord of the tank-fillingpump.NoCheck the fuse on the connection board.Value: 5A. See page 84.Is the fuseon the connection boardokay?YesCheck the cable loom of the device.NoReplace the fuse onthe connection board.See page 84.Is the cable loom okay?YesReplace the circuit board.NoReplace the cableloom.Is the tank filling pumprunning?NoYes44page 838page 3136Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!
Diagnosis 7page 3645Check the tank-filling pump for soiling or fora defective pump impeller wheel.Is thetank-filling pump soiled or is the pumpimpeller wheel defective?NoYesReplace or clean the tank fillingpump.The external hot water tank is furred up.Decalcify the tank.8page 31page 3646Check that the pump impeller wheel of thetank filling pump is not blocked.Is thepump impeller wheel of the tank fillingpump blocked?NoYesAs described for the primary circulationpump, the tank filling pump must be turned inthe direction of rotation of the pump using ascrewdriver.8page 3147page 37Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications! 37
Page 1 and 2: Servicing instructionsCondensing ga
Page 6: 1Safety and general instructions1.8
Page 9 and 10: Operation 44 Operation4.1 Operating
Page 11 and 12: Operation 44.2.2 "Service Mode" men
Page 13 and 14: Operation 4"ADJUSTMENTS" MENU72Curr
Page 15 and 16: Function 55.2 Structure diagram "Fu
Page 17 and 18: Function 5page 163The "Hot water mo
Page 19 and 20: Function 5page 16, page 186The "Hea
Page 21 and 22: Symptoms 6The following display val
Page 23 and 24: Symptoms 6zMaine [1/c/\| e [2/1/0|
Page 25 and 26: Symptoms 6zMaine [a/0/1| e [8/0/0|
Page 27 and 28: Diagnosis 77 Diagnosis7.1 Faults wi
Page 29 and 30: Diagnosis 7page 2819Check that ther
Page 31 and 32: Diagnosis 7No display, part 3page 3
Page 33 and 34: Diagnosis 7Hot water mode not opera
Page 35: Diagnosis 7Repl. AApage 3312Check t
Page 39 and 40: Diagnosis 7page 3415Check the prima
Page 41 and 42: Diagnosis 7hot water but no central
Page 43 and 44: Diagnosis 7page 3648Check the DHW c
Page 45 and 46: Diagnosis 7No digital pressure disp
Page 47 and 48: iiliDiagnosis 7Lo0 Y 276The supply
Page 49 and 50: Diagnosis 7Blocking boiler-fault co
Page 51 and 52: Diagnosis 7Locking boiler fault cod
Page 53 and 54: Diagnosis 7Operating code 2U2U 21 3
Page 55 and 56: Diagnosis 7Blocking boiler fault co
Page 69 and 70: Diagnosis 76A Branch 05 v1 v8page 6
Page 71 and 72: Diagnosis 76A Branch 07page 6735Che
Page 79 and 80: Diagnosis 7Operating code 8Y7 L 2 6
Page 83 and 84: Diagnosis 7Replace the UBA44Check t
Page 85 and 86: Actions 88.1.2 External connection
Page 87 and 88:
Actions 88.1.4 Checking the fan uni
Page 89 and 90:
Actions 8• Remove the air suction
Page 91 and 92:
Actions 88.1.8 Replacing the supply
Page 93 and 94:
Actions 8• Set the main switch on
Page 95 and 96:
Actions 8• Switch on the power su
Page 97 and 98:
Actions 88.1.17 Checking the ioniza
Page 99 and 100:
Actions 88.1.20 Checking the gas co
Page 101 and 102:
Actions 8fig. 40 Testing the resist
Page 103 and 104:
Actions 8• Loosen three screws on
Page 105 and 106:
Actions 8• If the boiler does not
Page 107 and 108:
Actions 88.1.25 Measuring the inlet
Page 109 and 110:
Actions 88.1.27 Measuring the carbo
Page 111 and 112:
Actions 8• Pull both plugs on the
Page 113 and 114:
Actions 88.1.30 Burner; replacing
Page 115 and 116:
Actions 8• Install the new burner
Page 117 and 118:
Actions 88.1.34 Heat exchanger; rep
Page 119 and 120:
Actions 8• Disconnect the plug an
Page 121 and 122:
Actions 8• Remove both the hot su
Page 123 and 124:
Actions 8• Loosen the fastening s
Page 125 and 126:
Actions 88.1.35 UBA 3; replacing•
Page 127 and 128:
Appendix 9Gas orifice diameter Alti
Page 129 and 130:
Spare parts 10Pos. Description Prod
Page 131 and 132:
Spare parts 10Exploded view Logamax
show all

Service manual - Logamax plus GB142 (USA/CA) - en - Buderus

Create successful ePaper yourself

Delete template?

Save as template?