The call came in at 8.30pm. The boiler was locked out on fault C7, a fan fault. We replaced the fan, then found a second fault behind it, an H09 code the customer had been resetting for months, and replaced the PCB on the same visit. Genuine Worcester Bosch parts, and the boiler running again within two hours of the call.
A customer in Sutton Coldfield called our emergency line at 8.30pm. Their Worcester Greenstar 30i ErP had stopped, and the display showed C7, 214 and "Fan": a fan fault. We replaced the fan and got the boiler running. With it running, the display then showed H09. The customer told us that code had been coming up for the past few months and they had been resetting it. We diagnosed the PCB, the boiler's main control board, as the cause. We had that part on the van too, so with the customer's agreement we replaced it on the same visit. Both parts were brand-new, genuine Worcester Bosch parts, and the boiler was running again within two hours of the call.
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£99 in office hours (Mon–Fri, 8am–5.30pm) covers attendance, diagnosis and the first hour. Parts and any further work are quoted and agreed before we carry on. Out of hours, the price is quoted by phone before we set off.
No travel charge within 10 miles of B20 2JS. Further out, £2 per mile may apply — always agreed before anything is booked. Full price list
Smell gas now? Do not use this form or wait for a reply. Call the National Gas Emergency Service free on 0800 111 999 (24 hours). If you are using a mobile, make the call from outside. Open doors and windows, do not switch electrics on or off, do not smoke or use naked flames, and turn the gas off at the meter if it is safe to do so, unless the meter is in a cellar or basement. Once the supply has been made safe, we can trace and repair the fault.
The call came in at 8.30pm from a customer in Sutton Coldfield. Their boiler, a Worcester Greenstar 30i ErP, had stopped, and the display was showing C7 with 214 and "Fan". The first photo is the boiler as we found it.
On Worcester Greenstar boilers, C7 is a fan fault: the boiler cannot detect its fan running, and without the fan it will not light. We tested it and the fan had failed. The second photo is the outlet of the old fan, with dust and debris built up inside. We fitted a new fan and got the boiler running again.
With the boiler running, the display then showed H09. The customer told us this code had been coming up for the past few months, and they had been resetting it each time. We diagnosed the PCB, the boiler's main control board, as the cause. We had that part on the van as well, so we explained what we had found, asked the customer whether they wanted it repaired there and then, and with their agreement replaced the PCB on the same visit.
Both parts were brand-new, genuine Worcester Bosch parts, and the boiler was running again within two hours of the call. Our Worcester boiler repair page covers other Worcester faults, and our 24/7 emergency page explains how out-of-hours calls work.
Out of hours, including evenings, we quote the price on the phone before we set off. In office hours (Mon–Fri 8am–5.30pm) a boiler repair is £99, covering attendance, diagnosis and the first hour, with parts quoted and agreed before we fit them. Details are on our price list.
On Worcester Bosch Greenstar boilers, C7 is a fan fault: the boiler cannot detect its fan running, so it will not light. Here the display showed C7 with 214 and "Fan". A failed fan is a common cause, as here; a wiring fault or a control board fault can cause it too, so it needs an engineer to test.
Once the new fan was in and the boiler was running, the display showed H09. The customer told us it had been showing for months and they had been resetting it. We diagnosed the PCB, the main control board, as the cause, explained it, and with the customer's agreement replaced it on the same visit.
No. A reset clears the display, not the fault. If a code keeps coming back, stop resetting it and call an engineer with the code and the boiler model. If you can smell gas, call the National Gas Emergency Service on 0800 111 999 first.
Yes. Our emergency line is answered 24 hours a day, seven days a week. Out of office hours we quote the price on the phone before we set off.
Yes. Both the fan and the control board were brand-new, genuine Worcester Bosch parts; the boxes are in the last photo.
Job attended and photographed by our engineers, October 2026. Written up by Saeed Iqbal, the engineer who leads Synergy Gas & Plumbing (Gas Safe registered 594385). More of our work in the area is on our Sutton Coldfield page, and every job we write up is on the case studies index.
£99 diagnosis + first hour
£99 in office hours (Mon–Fri, 8am–5.30pm) covers attendance, diagnosis and the first hour. Parts and any further work are quoted and agreed before we carry on. Out of hours, the price is quoted by phone before we set off.
No travel charge within 10 miles of B20 2JS. Further out, £2 per mile may apply — always agreed before anything is booked.
No heating or hot water and E133 on the display. The condensate trap was blocked with sludge; we cleared it and had the boiler running again, with a service booked for the following week.
Read the case studyA corroded radiator valve had started leaking onto the floor. Dust sheets down first, radiator drained, new valve fitted and checked on the same visit.
Read the case studyWhat a full strip-down actually involves, photographed as we went: fan and burner out, burner door and heat exchanger cleaned, gaskets replaced. Then a walk round the house to bleed every radiator.
Read the case study£99 in office hours covers attendance, diagnosis and the first hour. Parts quoted before we fetch them.
